Closure for cylinders



Nov. 7, 1933. M. E. CROWELL El AL CLOSURE FOR GYLI NDERS Filed June 25, 1932 2 Sheets-Sheet 1 Q0. 1 6 2 w w w 3 I III 2. 7 27 3 v fiwm 1% Q s i\ 2 5. WU =3 0 0, o 5@ O Q 0 w 5 20 O4 m 8 w 2 w MW 3 A? 6 5 u w .NOV. 7, M. E. CROWELL AL 1,933,969

CLOSURE FOR CYLINDERS Filed June 25, 1932 2 Sheets-Sheet 2 ZSnnentors Patented Nov. 7, 1933' UNITED STATES.

PATENTQFFVICE'T 1,933,969 CLOSURE FOR CYLINDERS Melvin E. Crowell,Franklin, and Theodore W.

Smith, Indianapolis, Ind., assignors to Peter C. 1

Reilly, Indianapolis, Ind. v s Application June 25, -1932. Serial No. 619,344 v 13 Claims. (01. 220-37) This invention pertains toclosures for cylinders and has i or its main object the provision of means for accurately positioning the closure with reference to the cylinder and thereafter drawing the closure tightly to place. 5 While the structure was designed primarily for use in connection with a cylinder in which ties or timbers are placed for subjecting them to an impregnating liquid under pressure, still the mechanism is of general application where it is designed .to eiiect a tight pressure proof closure.

One embodiment of the invention is disclosed in the annexed drawings wherein: V

. Figure 1 is a top plan view, with parts broken away, of one end of acylinder, the closure, and 5 parts of the associated mechanisms, the door or closure being shown in its fully closed position;

Figure 2, a perspective view with the various elements shown in detail and as separated;

Figure 3, a view similar to Figure 1, with the door or closure swung to its fully open-,position; Figure 4, a side elevation of the parts when they are in the position shown, in Figure 3;,and

Figure5, an end elevation with the parts in a similar position, g e In said drawingsonly a portion of the'cylinder is shown. It will be understood, however, that where the cylinder is open at both ends in order to introduce a tie into one end and to move or 9 withdraw it from the opposite end a closure mechanism will be employed for each end." Such being mere duplicationit is not deemed necessary to show and describe the same. The cylinder is denoted by 200 and at its end is provided with a 'fixed-beveled'retaining ring 201, inwardsot which and on the outer surface of the cylinder is a rotatable locking ring 202 provided with a series of outwardly'projecting lugs 203.

The cylinder is supported at the end shown by a suitable standard 204, thestandard being provided with a; circular opening and split at one side. The reduced portion of the end of the cylinder extends into the opening formed in the standard and the standard isclamped to the cylinder bya series of bolts 205. The, standard along with the encirclingring 201'form'a guideway for the locking ring 202. g 1

As will be seen upon reference toFigures 1 and 3, the outeri'ace of the locking ring 202 is slightly beveled adjacent the retaining ring, 201. In other words "the ring 201 and the outer portion of the ring 202 are beveledor inclined so that when the door; denoted by 206, is drawn openings or bearings formed in ihestandard 204 ions a right line movement of the member215, the shaft 212, and the door which is supported upwardly thereon itwillmake. a relatively close fit therewith.

The door- 206 is cap-shaped in cross section and the inner face of the flange portion is provided with bayonet slots 207 designed to coact with the pins 203 todraw the door closely against the end of the cylinder. when the ring 202 is 1'0- tated and the pin'moved into the inner curved portion of' the slots. Anysuitable packing, as 208, may be mounted in the door to abut the end of the cylinder and the outer edge of the retainingring201. e r r J The-door206 is provided with laterally extending spaced arms209, and 211 (see more'particuI- larly Figure 2)" through which extends a hinge pin or shaft-212. This shaft likewise passes through ears 213 and 214 extending outwardly from a casting 215. Extending inwardly from the casting 215, and in parallel spaced relation,

are two supporting bars or rods 216 and 21?. 7 The member 215, together with the, ears or lugs '2I 3; and 214 and the rods 216 and 217, form a movable supporting frame to which the door is hinged. c. r The .bars 216 and; 217 extend through suitable to one side of the cylinder; Bar 216, at its rear end and to the rear of'the bearing, has secured toit-a rack 213 while thelower bar 217 has secured to it a similar rack 219. g5

The-racks218, and 219,mesh respectively with a'pair of inter-meshing pinions 221 and 222 mounted, upon a plate 223 secured to the adjacent face of the housing of the support 204.

By the use of the racksand intermeshing pinthereby is insured so that the door, when swung around in line with the endof the cylinder,

will have the slots 207 in direct and accurate registry with the pins 203 and allow an inward movement of the door, in a right line direction, prior to the turning of the locking ring 202 to bring the door into close relation with the end of the cylinder through-the action of the bayonet slots. a

To bring about the swinging, movement of the door, both in opening and closing, to effectuate the movement of the door in its right line moveis a pinion 224 which is engaged at certain times v by a rack 225 formed at one edge of a plate 226, which plate is provided on its under face with a downwardly projecting rib 227. The lower edge of the rib 227 is rounded and finds its bearing in a socket formed in the cylinder support 204. c 7

Shaft 212 also hassecured to its upper end an L-shaped arm or lever 228 in the longer outer end of which there is mounted a roller 220. The shorter end of this lever is of a length substantially equal to the radius of the pinion 224 and is likewise provided at its outer end with a roller 231. Plate 226 at its forward end and'adjacent the parts just described hasadjustably secured to it a plate 232 designed to coact with the roller 229 as the shaft 212 is rotated to rock the plate 226 laterally. i 1

The plate 226 is provided with a rack 233 opposite the rack 225 and likewise has adjustably secured to its inner portion a bearing plate 234. The edge of said plate stands in line with a roller carried in the outer end of an arm or lever 235 normally held in engagement with the edge of the plate by a spring 236. The arm 235 is mounted upon a shaft 237 which finds its bearing in ab'racket 238 and in the supporting elementor member 204. Shaft 237 has secured to it two pinions 239 and 241 (Fig. 5), The uppermost pinion 239 is designed-to coa ct with the rack 233 when the plate 226 is rocked laterally or to the position in Figure 1. I

Pinion 241 is at all times in meshwith a circular rack 242 secured to the'locking ring 202 and serves to oscillate said ringabout the end of the cylinder} The rounded portion 243 formed at the lower portion-of the rib 227 is interconnected with a pistonrod 244 extending from an air cylinder 245.

As will be 'seen upon reference morepartic ularlyto Figure 3, when the'piston'rod 244 is moved inwardly the rack 225, actingthr'ough the piston rod 224; will rotate shaft 212 counterclockwise and-through the arms 209'and 211, which are likewise secured to the shaft, the door 206 will be thrown around in line "with the open end of the cylinder. At such time the roller 231 on the arm 228 will contact a shoulder 230 i rack 242. As a consequence the pins are caused to move inwardly of the bayonet slots 207 and draw the packing ring 208 tightly against the end of the cylinder. i 1

In the opening of the door the plate 234 functions with the spring pressed arm 235 in 'a manner similar to the functioning of the arm 228 with reference to the plate 232 and rocks the member 226 so as to free the rack 233 from engagement with the pinion 239 after the ring 202 has been rotated to move the pins out of the inclined portions'of the slots 207.

When the member 226 is shifted it of course brings the rack 225 into engagement with the pinion 224 so that the door-supporting mechanism may be moved outwardly prior tothe door course, be appreciated that any other at one end; a ring shaped element mounted for inder to align the slots and lugs aforesaid and l to then draw the closure inwardly so that the I or closure 206. It follows, therefore, that when the door is swung around so that its axis is in line with the axis of the cylinder the fixed memher 246 willstand in line with the slot 247 and, as the door is moved inwardly into engagement with the pins 203, itmust move in a right line. The supporting elements for the door, as heretofore described, also function to properly position the same with reference to the end of the cylinder prior to its being locked in position.

While we have shown a cylinder and piston mechanism for actuating the parts it will, of

means or motive power may be employed.

What is claimed is: I

1. In combination with a cylinder open at least atone end, a ring shaped element mounted for oscillation uponthe cylinderadjacent such end; a plurality'of radially and outwardly extending lugs carried by the ring; a door provided with a plurality of cam slots corresponding in number to the lugs; a supporting frame for the door,

said'fr'ame being mounted for movement parallel to the axis of the cylinder and upon which frame the door is pivotally mounted; and gearing interposed between the door and the ring to effectua'te a swinging movement of the door to align theslots and lugs and to thereafter rotate terconnectedwith the ring to oscillate the same and thereby cause the lugs to alternately draw upon and release the door.

4. In combination with a cylinder open at least oscillation upon the cylinder adjacent said end;

a plurality of-lugs extending outwardly therefrom; a closure for the cylinder end, said cloreceive the lugs; a supporting frame upon which the closure is mounted for swinging movement,

said frame'being movable parallel to the "axis .of the cylinder; means for swinging the door to a position in front of the open end of the cyllugs enter the slots; and means for oscillating the ring. I I I 5. A structure as set forth in claim 4, wherein the means for swinging the closure and oscil- .lating the'. ring comprises gearing including a 'tiltable double rack which alternately engages a door swinging gear and gearing for oscillating the ring.

6. A structure as set forth in claim 4, wherein the-means for swinging the closure and oscillating the'ring comprises gearing including a tiltable double rack which alternately engages adoorswinging gear and gearing for-oscillating the ring; and means for tilting the rack. v

7. A structure as set forth in claim 4, wherein the means for swinging the closure and oscillating the ring comprises gearing including a tiltable double rack which alternately engages a door swinging gear and gearing for oscillating the ring; and means for tilting the rack, said means comprising a pair of plates secured to the rack a lever or arm cooperative with each of said plates, one arm eing movable with the closure opening and closin gear and the other with the gear which oscillates the ring.

8. In combination with a cylinder open at least at one end; a ring shaped element mounted for oscillation upon the cylinder adjacent said end; a closure for the cylinder, said closure and ring being provided with interengaging camming memb rs which, upon movement of the ring in one direction, serve to draw the closure tightly to place; a supporting frame upon which the closure is pivotally mounted, said frame being movable axially of the cylinder; a gear secured to the pivotal mounting of the closure; a rack carried by the ring; a shaft; a pinion secured to the shaft, said pinion being in constant mesh with the rack; a second pinion likewise secured to said shaft; a rocking and endwise movable member; means for moving said member endwise; a rack along each side of said member and designed to engage in alternation the gear secur d to the pivotal mounting of the closure and said second pinion aforesaid; and means acting on the rocking member to shift the same.

9. A structure set forth in claim 8, wherein the means for shifting the rocking member comprises an arm secured to the pinion carrying shaft cooperative with a cam plate carried by the rocking member; and a second arm movable with the gear associated with the pivotal mounting of the closure and cooperative with a second cam plate also carried by the rocking member.

10. A structure as set forth in claim 8, wherein the supporting frame comprises a casting; two arms extending rearwardly therefrom which pass through openings formed in a support for the cylinder; a rack secured to the rear end of each of said arms; a pair of gears intermeshing with each other and with the respective racks.

11. In combination with a cylinder open at least at one end; a ring shaped element mounted for oscillation upon the cylinder adjacent said end; a closure for the cylinder, said closure and ring being provided with interengaging camming members which, upon movement of the ring in one direction, serve to draw the closure tightly to place with reference to the cylinder; a support for the closure movable longitudinally with reference to the cylinder and upon which support the closure is pivotally sustained; and means to shift the ring to effectuate the camming action as set forth.

12. In combination with a cylinder open at' least at one end; a ring shaped element mounted for oscillation upon the cylinder adjacent said end; a closure for the cylinder, said closure and ring being provided with interengaging camming members which, upon movement of the ring in one direction, serve to draw the closure tightly to place; a support for the closure, said support being movable axially of the cylinder; a pivotal connection between said support and the closure; and means foractuating the ring whereby the closure may be swung around in line with the cylinder end, moved axially with reference to the cylinder to bring the camming members into engagement and thereafter, upon actuation of the ring, to effect a camming action between the camming members.

13. In combination, a cylinder; a ring mounted for rotation about the cylinder adjacent an open end thereof; a plurality of studs extending outwardly from the ring; a door or closure for the end of the cylinder, said door having cam slots formed interiorly thereof; supporting means to which the door is hinged, said means being mounted for movement in line with the axis of the cylinder; means for moving said supporting means to carry the door toward and from the end of the cylinder; and means for rotating said ring to cause the studs to function with the slots formed in the door.

MELVIN E. CROWELL. THEODORE W. SMITH. 

